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首页> 外文会议>3-D Digital Imaging and Modeling, 2007 6th International Conference on >Real-time full-field 3-D surface-shape measurement using off-the-shelf components and a single processor
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Real-time full-field 3-D surface-shape measurement using off-the-shelf components and a single processor

机译：使用现成的组件和单个处理器进行实时全场3D表面形状测量

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Phase-shifting fringe-projection methods have been increasingly used for three-dimensional (3-D) object surface modeling to permit full-field measurement. This paper presents a real-time full-field high-resolution 3-D surface-shape measurement system implemented with an efficient 3-D shape measurement pipeline and triangular-pattern phase-shifting based on off-the-shelf components, software synchronization and a single computer-processor. The system projects computer-generated fringe patterns with a triangular intensity profile onto an object via a Digital Light Processing (DLP) projector. The projected patterns are electronically shifted and a CCD camera synchronized with the DLP projector by software captures the images from another direction. The captured images are processed by a single computer to reconstruct the 3-D shape using triangular-pattern phase-shifting algorithms, and the model is displayed in real time. The 3-D shape acquisition system achieved a speed of 5.6 fps for an image size of 648脳494 pixels using the two-step triangular-pattern phase-shifting method, without any hardware synchronization or dual processing.
机译：相移条纹投影方法已越来越多地用于三维（3-D）物体表面建模，以实现全场测量。本文提出了一种实时的全场高分辨率3D表面形状测量系统，该系统通过高效的3D形状测量管线和基于现成组件，软件同步和单个计算机处理器。该系统通过数字光处理（DLP）投影仪将具有三角强度轮廓的计算机生成的条纹图案投影到对象上。投影的图案被电子移位，并且通过软件与DLP投影仪同步的CCD摄像机从另一个方向捕获图像。捕获的图像由一台计算机处理，以使用三角图案相移算法重建3D形状，并实时显示模型。 3-D形状采集系统使用两步三角模式相移方法，对于648×494像素的图像大小，可实现5.6 fps的速度，而无需任何硬件同步或双重处理。

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